<div id="myCarousel" class="carousel slide" data-ride="carousel" data-interval="2000">
    <ol class="carousel-indicators">
        <li data-target="#myCarousel" data-slide-to="0" class="active"></li>
        <li data-target="#myCarousel" data-slide-to="1"></li>
        <li data-target="#myCarousel" data-slide-to="2"></li>
    </ol>
    <div class="carousel-inner">
        <div class="item active">
            <img src="./image/bg_lock.jpg" alt="First slide" class="img-responsive">
        </div>
        <div class="item">
            <img src="./image/bg_lock.jpg" alt="Second slide" class="img-responsive">
        </div>
        <div class="item">
            <img src="./image/bg_lock.jpg" alt="Third slide" class="img-responsive">
        </div>
    </div>
</div>